Since posting the unauthorized photo on Snapchat, Mathers has received heavy criticism on the web and issued an apology. The gym, LA Fitness, revoked her membership and is handling matters with the police.

Blackmon shared a carefree snap husband took of her changing to work out, wearing just trainers and a headband.

"You may have been a Playboy model but not all of us work out to be "hot", some of us work out simply to honor the bodies we were given."

Underneath she added a message to Mathers: "You may have been a Playboy model but not all of us work out to be 'hot,' some of us work out simply to honor the bodies we were given," she writes. "That's all that woman was trying to do and you violated her. Shame on you."

The mom, who runs a blog under the persona "Delicate Flower," tells HuffPost Canada Style she's glad to take aim at body shamers, showing off her "lumps and bumps" and her post has spawned other posts from women showing off their bodies.

More than that, Blackmon says it was more about being tired of "meanness".

Playboy model Dani Mathers, 29, came under fire after posting a body-shaming Snapchat of another woman at the gym.

"I'm a normal woman too, I've been catty and it's OK to make fun of each other and laugh at each other to a certain level," Blackmon tells HuffPost Canada Style. "But the level she went to, it was personal."

"It seems like people are going after each other for their politics, their race, their religion, their bodies, their opinions," she continues.